Gas spring, a method of filling a gas spring with...

Details Gas spring, a method of filling a gas spring with... Gas spring, a method of filling a gas spring with...

F - Mech Eng,Light,Heat,Weapons

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F

267/68

F16F 9/16 (2006.01) B23K 26/12 (2006.01) B23K 26/38 (2006.01) F16F 9/02 (2006.01) F16F 9/43 (2006.01) F17C 5/06 (2006.01)

Patent

CA 2021132

ABSTRACT A gas spring must be filled with pressurized gas through an opening. This opening must be closed after the filling operation while maintaining the gas pressure within the gas spring. According to this invention, the filling opening is bored by a laser beam, while the location of the opening to be bored is confined within a filling chamber. After such laser boring of the opening, pressurized gas is admitted to the filling chamber and flows from the filling chamber into the gas spring. Thereafter, the filling opening is closed again by directing the laser beam against an annular zone surrounding the opening whilst the opening is still in the filling chamber.

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